washington will take over. >> eric: have a good day, everybody. >> jamie: a nation mourns the lives of the tragedy from sandy hook elementary. police say they have uncovered evidence in the case and they are tracing all the weapon, all the way backto the work benches where they were made. president obama preparing to fly to newtown, connecticut, to act oz our country's consoler in chief. as authorities release the names of the school staff and children who were killed, we learn, not only the terrible details about their last momes and the touching stories of the lives behind the names. i'm bream -- i'm shannon bream with america's news headquarters live from the nation's capitol, starting now. police are working to draw a more complete picture of the man who came to sandy hook elementary and killed children. peter doocy has the latest. >> reporter: with the connecticut state police press conference that just wrapped, the most compelling part, perhaps, was when the lieutenant basically warned people who have been somehow -- we don't know specifically -- but using social media to pose